CN102109565B - Intelligent detector of CT (current transformer) secondary circuit - Google Patents
Intelligent detector of CT (current transformer) secondary circuit Download PDFInfo
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- CN102109565B CN102109565B CN 201010596638 CN201010596638A CN102109565B CN 102109565 B CN102109565 B CN 102109565B CN 201010596638 CN201010596638 CN 201010596638 CN 201010596638 A CN201010596638 A CN 201010596638A CN 102109565 B CN102109565 B CN 102109565B
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- 230000033001 locomotion Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 7
- 238000009738 saturating Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The invention discloses an intelligent detector of a CT (current transformer) secondary circuit, comprising detector main bodies. An input module is arranged at the top of each detector main body and is provided with an inserting port; a display screen and a keyboard are arranged at the front of the detector main body; each detector main body is internally provided with an inner cavity; the inner cavity is internally provided with a winding-up plate; one side of the winding-up board is provided with a side plate; three installing through holes are arranged on the winding-up plate in a side-by-side manner; a positioning cross rod is arranged on the winding-up plate and penetrates through the three installing through holes; two baffles are arranged on the winding-up plate in parallel and are respectively positioned at the two sides of the middle installing through hole; each installing through hole is internally provided with a current caliper which is connected with the positioning cross rod and is provided with a lead wound on the winding-up plate; and two detector main bodies are provided with handles, and two connecting rods of the handles penetrate through the inner cavities to be connected with the winding-up plates. In the intelligent detector, the problems in the prior art can be solved, and the current calipers are arranged in the detector main bodies in order after the detection is finished so as to avoid the current calipers from being lost effectively.
Description
Technical field
The present invention relates to the CT secondary circuit intelligent detecting instrument that a kind of ehv power transmission industry is used.
Background technology
CT is current transformer, and it is made according to electromagnetic induction principle, is comprised of iron core and winding two parts of closure.Current transformer can numerical value is larger primary current be converted to the less secondary current of numerical value by certain no-load voltage ratio, be used for protecting, the purposes such as measurement.Being 400/5 current transformer such as no-load voltage ratio, can be reality that the current transitions of 400A is the electric current of 5A.Described secondary loop of mutual inductor is to monitor the circuit that instrument, relay, aut.eq. etc. are unified into by control cables by the secondary winding of current transformer, measurement, in order to the working condition of each parameter and each element in control, protection, adjusting, the measurement primary circuit.Existing its function of CT secondary circuit detector mainly comprises nuclear phase, checks namely whether A, B, C three-phase phase-sequence be correct; The load tide flow path direction checks, namely measures whether correct and current amplitude inspection three-phase current balance whether of power flow direction and three-phase current phase angle, and whether correct by checking timely discovery CT wiring, the loop has or not short circuit or earth fault.But existing CT secondary circuit detector exists the current clamp that detects usefulness not easy to store, the problem of easily losing in detection or the carrying process.
Summary of the invention
Purpose of the present invention provides a kind of CT secondary circuit intelligent detecting instrument, and it can solve the problem that prior art exists, and can after detection is finished current clamp be taken in the detector main body in an orderly manner, can effectively avoid losing.
The objective of the invention is to be achieved through the following technical solutions: CT secondary circuit intelligent detecting instrument, comprise the detector main body, load module is installed at the top of detector main body, and load module is provided with insert port; The front of detector main body is provided with display screen and keyboard, offers inner chamber in the detector main body, and wire rewinding board is installed in the inner chamber, and a side of wire rewinding board arranges side plate, and side plate is vertical with wire rewinding board; Offer side by side three on the wire rewinding board through hole is installed, a location cross bar is installed on the wire rewinding board, the location cross bar runs through three installs through hole; The both sides of the installation through hole in the middle of two dividing plates that be arranged in parallel on the wire rewinding board, two dividing plates lay respectively at; Each is installed a current clamp is installed in the through hole, and current clamp is connected with the location cross bar, and conducting wire on the current clamp, wire are around on the wire rewinding board; On the detector main body handle is installed, two connecting links of handle penetrate in the inner chamber and are connected with wire rewinding board.
For further realizing purpose of the present invention, can also realize by the following technical solutions: the locking device housing is set on the wire rewinding board, and the locking device housing is connected with a connecting link; Offer groove and cavity in the handle, between groove and the cavity baffle plate is set, offer groove on the baffle plate; Peace spring and button in the groove, an end of spring is connected with button, and the other end of spring is connected with handle, installing connecting rods in the cavity, an end of connecting rod is connected with button through saturating groove, and the other end of connecting rod is installed contiguous block, and contiguous block is positioned at the locking device housing; Orienting sleeve and fixed pulley are installed in the locking device housing, motion bar is installed in the orienting sleeve, and an end mounting limit piece of motion bar is installed dead bolt on the limited block, the end face of dead bolt is the inclined-plane, dead bolt passes outside the locking device housing, the periphery mounting spring of motion bar, and spring is between limited block and orienting sleeve, drag-line is installed on the fixed pulley, one end of drag-line is connected with contiguous block, and the other end of drag-line is connected with motion bar, offers through hole on the locking device housing sidewall; Offer pilot hole on the inwall of detector main body, pilot hole cooperates with dead bolt.Inner chamber is offered chute, and slide block is installed in the chute, and slide block is connected with wire rewinding board.
Good effect of the present invention is: it is provided with wire rewinding board, the staff detect complete after, can be fixed in order current clamp on the wire rewinding board, be wound in order the wire of current clamp on the wire rewinding board, and wire rewinding board closed in the detector main body inner chamber, both be convenient for carrying, can prevent effectively again that the situation that current clamp is lost from occuring.In addition, current clamp and wire discharge in order, can make things convenient for the staff to take out fast current clamp and be connected with the detector main body with wire, thereby can improve detection efficiency.The present invention also has advantages of compactness simple for structure, cheap for manufacturing cost and easy to use.
Description of drawings
Fig. 1 is the structural representation of CT secondary circuit intelligent detecting instrument of the present invention, is open mode among the figure, can carry out the work of take-up or unwrapping wire; Fig. 2 is the structural representation of CT secondary circuit intelligent detecting instrument of the present invention, is closure state among the figure, is convenient for carrying; Fig. 3 is that the A of Fig. 1 is to the structure for amplifying schematic diagram; Fig. 4 is the local structure for amplifying schematic diagram of the I of Fig. 1; Fig. 5 is the local structure for amplifying schematic diagram of the II of Fig. 1.
Reference numeral: 1 detector main body 2 display screen 3 keyboard 4 inner chamber 5 wire rewinding boards 6 are installed saturating groove 33 through hole 34 side plate 35 baffle plate 36 locating holes of through hole 7 location cross bar 8 current clamp 9 wire 10 plug 11 input module 12 insert port 13 chute 14 slide block 15 connecting rod 16 handle 17 dividing plate 18 groove 19 button 20 spring 21 cavity 22 connecting rod 23 contiguous block 24 locking device housing 25 drag-line 26 fixed pulley 27 fairlead 28 motion bar 29 spring 30 dead bolt 31 limited block 32.
Embodiment
CT secondary circuit intelligent detecting instrument of the present invention comprises detector main body 1, and load module 11 is installed at the top of detector main body 1, and load module 11 is provided with insert port 12; The front of detector main body 1 is provided with display screen 2 and keyboard 3; Circuit theory in the detector main body 1 can be identical with existing CT secondary circuit detector, and circuit theory that also can existing volt ampere meter is identical, in order to realize identical measuring ability.Offer inner chamber 4 in the detector main body 1, inner chamber 4 interior installation wire rewinding boards 5, a side of wire rewinding board 5 arranges side plate 34, and side plate 34 is vertical with wire rewinding board 5; Take in as shown in Figure 2 inner chamber 4 when interior when wire rewinding board 5, side plate 34 cooperates with detector main body 15 position-limiting actions of wire rewinding board, and simultaneously, side plate 34 cooperates also and can seal with detector main body 1, prevents that environmental contaminants from entering inner chamber 4.As shown in Figure 1, offer side by side three on the wire rewinding board 5 through hole 6 is installed, a location cross bar 7 is installed on the wire rewinding board 5, location cross bar 7 runs through three installs through hole 6; The both sides of the installation through hole 6 in the middle of two dividing plates, 17, two dividing plates 17 that be arranged in parallel on the wire rewinding board 5 lay respectively at; Each is installed in the through hole 6 can install a current clamp 8, current clamp 8 is connected with location cross bar 7, as shown in Figure 3, current clamp 8 is fixedly clamped on the cross bar 7 of location, conducting wire 9 on the current clamp 8, wire 9 is around on the wire rewinding board 5, and three wires 9 are separated by two dividing plates 17, can prevent from mutually twining between wantonly two wires 9; Handle 16 is installed on the detector main body 1, and two connecting links 15 of handle 16 penetrate in the inner chamber 4 and are connected with wire rewinding board 5.
During detection, plug 10 is connected with insert port 12, is connected with device line with current clamp 8.Detect complete after, first plug 10 separates with insert port 12; Again current clamp 8 is sandwiched in as shown in Figure 3 on the cross bar 7 of location and fixes, and wire 9 is around on the wire rewinding board 5; At last wire rewinding board 5 is pushed inner chamber 4 interior getting final product, at this moment, the staff can upwards carry handle 16, and detector main body 1 is mentioned with Portable belt, can prevent that wire rewinding board 5 is by skidding off in the inner chamber 4, in order to prevent that current clamp 8 is by coming off in the detector main body 1 simultaneously.
In order to prevent that further wire rewinding board 5 from skidding off arbitrarily by inner chamber 4 is interior, cause losing of current clamp 8, such as Fig. 1, Fig. 4 and shown in Figure 5, locking device housing 24 is set on the wire rewinding board 5, locking device housing 24 is connected with a connecting link 15; Offer groove 18 and cavity 21 in the handle 16, between groove 18 and the cavity 21 baffle plate 35 is set, offer groove 32 on the baffle plate 35; Groove 18 interior peace spring 20 and buttons 19, one end of spring 20 is connected with button 19, the other end of spring 20 is connected with handle 16, cavity 21 interior installing connecting rods 22, one end of connecting rod 22 is connected with button 19 through saturating groove 32, the other end of connecting rod 22 is installed contiguous block 23, and contiguous block 23 is positioned at locking device housing 24; Locking device housing 24 interior installation orienting sleeve 27 and fixed pulleys 26, orienting sleeve 27 interior installation motion bars 28, motion bar 28 is fixedly connected with locking device housing 24,27 pairs of motion bars 28 of orienting sleeve play the guiding role, one end mounting limit piece 31 of motion bar 28, dead bolt 30 is installed on the limited block 31, the end face of dead bolt 30 is inclined-planes, dead bolt 30 passes outside the locking device housing 24, the periphery mounting spring 29 of motion bar 28, spring 29 is between limited block 31 and orienting sleeve 27, spring 29 provides the pretightning force that resets for dead bolt 30, drag-line 25 is installed on the fixed pulley 26, and an end of drag-line 25 is connected with contiguous block 23, the other end of drag-line 25 is connected with motion bar 28, offers through hole 33 on locking device housing 24 sidewalls; Offer pilot hole 36 on the inwall of detector main body 1, pilot hole 36 cooperates with dead bolt 30.
When wire rewinding board 5 being pushed in inner chamber 4 internal procedures, because the end face of dead bolt 30 is intilted planes, therefore, can produce the component that points to orienting sleeve 27 directions during the stopping of dead bolt 30 examined instrument main bodys 1, the elastic force that makes dead bolt 30 overcome spring 29 shrinks to locking device housing 24, until dead bolt 30 is when moving to pilot hole 36 place, dead bolt 30 enters in the pilot hole 36 under the effect of spring 29, pilot hole 36 cooperates locking wire rewinding board 5 with dead bolt 30, prevent that wire rewinding board 5 is by skidding off in the inner chamber 4.When detecting, needing wire rewinding board 5 by inner chamber 4 interior taking-up, can press button 19, the elastic force that button 19 drivening rods 22 overcome spring 20 moves, connecting rod 22 connects drag-line 25 by contiguous block 23 and moves, drag-line 25 is by in motion bar 28 and the limited block 31 pulling dead bolts 30 income locking device housings 24, dead bolt 30 and pilot hole 36 are broken away from, at this moment, can promote handle 16 wire rewinding board 5 is interior extrapolated by inner chamber 4.Because locking device housing 24 interior limited spaces, can't satisfy connecting rod 22 shift motions, therefore, when connecting rod 22 connect drag-line 25 and moves by contiguous block 23, contiguous block 23 and drag-line 25 all can be passed outside the locking device housing 24 by through hole 33.
Inner chamber 4 is offered chute 13, chute 13 interior installation slide blocks 14, and slide block 14 is connected with wire rewinding board 5, and slide block 14 cooperates with chute 13 and can play the guiding role to wire rewinding board 5, makes wire rewinding board 5 move more accurate quick with respect to inner chamber 4.
Technical solutions according to the invention are not restricted in the scope of embodiment of the present invention.The present invention not technology contents of detailed description is known technology.
Claims (2)
1.CT the secondary circuit intelligent detecting instrument comprises detector main body (1), load module (11) is installed at the top of detector main body (1), and load module (11) is provided with insert port (12); The front of detector main body (1) is provided with display screen (2) and keyboard (3), it is characterized in that: offer inner chamber (4) in the detector main body (1), wire rewinding board (5) is installed in the inner chamber (4), and a side of wire rewinding board (5) arranges side plate (34), and side plate (34) is vertical with wire rewinding board (5); Offer side by side three on the wire rewinding board (5) through hole (6) is installed, the upper location cross bar (7) of installing of wire rewinding board (5), location cross bar (7) runs through three installs through hole (6); The both sides of the installation through hole (6) in the middle of two dividing plates (17) that be arranged in parallel on the wire rewinding board (5), two dividing plates (17) lay respectively at; Each is installed a current clamp (8) is installed in the through hole (6), and current clamp (8) is connected with location cross bar (7), the upper conducting wire (9) of current clamp (8), and wire (9) is around on the wire rewinding board (5); The upper handle (16) of installing of detector main body (1), two connecting links (15) of handle (16) penetrate in the inner chamber (4) and are connected with wire rewinding board (5); Locking device housing (24) is set on the wire rewinding board (5), and locking device housing (24) is connected with a connecting link (15); Offer groove (18) and cavity (21) in the handle (16), between groove (18) and the cavity (21) baffle plate (35) is set, offer groove (32) on the baffle plate (35); Peace spring (20) and button (19) in the groove (18), one end of spring (20) is connected with button (19), the other end of spring (20) is connected with handle (16), the interior installing connecting rods of cavity (21) (22), one end of connecting rod (22) is connected with button (19) through saturating groove (32), the other end of connecting rod (22) is installed contiguous block (23), and contiguous block (23) is positioned at locking device housing (24); Orienting sleeve (27) and fixed pulley (26) are installed in the locking device housing (24), motion bar (28) is installed in the orienting sleeve (27), one end mounting limit piece (31) of motion bar (28), the upper dead bolt (30) of installing of limited block (31), the end face of dead bolt (30) is the inclined-plane, dead bolt (30) passes outside the locking device housing (24), the periphery mounting spring (29) of motion bar (28), spring (29) is positioned between limited block (31) and the orienting sleeve (27), the upper drag-line (25) of installing of fixed pulley (26), one end of drag-line (25) is connected with contiguous block (23), the other end of drag-line (25) is connected with motion bar (28), offers through hole (33) on locking device housing (24) sidewall; Offer pilot hole (36) on the inwall of detector main body (1), pilot hole (36) cooperates with dead bolt (30).
2. CT secondary circuit intelligent detecting instrument according to claim 1, it is characterized in that: inner chamber (4) is offered chute (13), and slide block (14) is installed in the chute (13), and slide block (14) is connected with wire rewinding board (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596638 CN102109565B (en) | 2010-12-20 | 2010-12-20 | Intelligent detector of CT (current transformer) secondary circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010596638 CN102109565B (en) | 2010-12-20 | 2010-12-20 | Intelligent detector of CT (current transformer) secondary circuit |
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| Publication Number | Publication Date |
|---|---|
| CN102109565A CN102109565A (en) | 2011-06-29 |
| CN102109565B true CN102109565B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010596638 Expired - Fee Related CN102109565B (en) | 2010-12-20 | 2010-12-20 | Intelligent detector of CT (current transformer) secondary circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154100B (en) * | 2016-06-23 | 2018-11-02 | 国网山东省电力公司济阳县供电公司 | Circuit rapid grounding judges instrument |
| CN106597206B (en) * | 2016-11-30 | 2019-01-04 | 国网江苏省电力公司连云港供电公司 | A kind of metering device secondary circuit detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215839A (en) * | 1997-10-29 | 1999-05-05 | 弗兰克公司 | Multimeter with current sensor |
| CN1793994A (en) * | 2005-12-29 | 2006-06-28 | 电子科技大学 | Monitoring method of electric current secondary loop short circuit and monitoring instrument |
| CN101251569A (en) * | 2008-04-01 | 2008-08-27 | 山东电力研究院 | Method for testing electric secondary AC loop |
| CN101467052A (en) * | 2006-04-27 | 2009-06-24 | 弗卢克公司 | Electrical measuring instrument having detachable current clamp |
| CN201909824U (en) * | 2010-12-20 | 2011-07-27 | 山东电力集团公司超高压公司 | Intelligent detector for CT (Current Transformer) secondary circuit |
-
2010
- 2010-12-20 CN CN 201010596638 patent/CN102109565B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215839A (en) * | 1997-10-29 | 1999-05-05 | 弗兰克公司 | Multimeter with current sensor |
| CN1793994A (en) * | 2005-12-29 | 2006-06-28 | 电子科技大学 | Monitoring method of electric current secondary loop short circuit and monitoring instrument |
| CN101467052A (en) * | 2006-04-27 | 2009-06-24 | 弗卢克公司 | Electrical measuring instrument having detachable current clamp |
| CN101251569A (en) * | 2008-04-01 | 2008-08-27 | 山东电力研究院 | Method for testing electric secondary AC loop |
| CN201909824U (en) * | 2010-12-20 | 2011-07-27 | 山东电力集团公司超高压公司 | Intelligent detector for CT (Current Transformer) secondary circuit |
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| CN102109565A (en) | 2011-06-29 |
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Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ULTRA-HV COMPANY OF SHANDONG ELECTRIC POWER CORPORATION Effective date: 20131122 Owner name: STATE GRID SHANDONG ELECTRIC POWER COMPANY MAINTEN Effective date: 20131122 |
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Free format text: CORRECT: ADDRESS; FROM: 250021 JINAN, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING |
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Effective date of registration: 20131122 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: MAINTENANCE COMPANY OF STATE GRID SHANDONG ELECTRIC POWER Co. Address before: 250021 No. ten, No. 111, weft Road, Shandong, Ji'nan Patentee before: Extra-high Voltage Co., Ltd., Shandong Electric Power Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 |